Renault RE20 sliding skirts?

Hey, how exactly did those "sliding sideskirts" work on the '80 Renault RE20 F1 car?

http://www.racingsportscars.com/f1/1981/Imola-1981-05-03-015.jpg

im not sure if we are talking about the same things but i know some old f1 cars had skirts that just slid across the ground. these were banned because they were considered unsafe though

google is your friend

Hey, how exactly did those "sliding sideskirts" work



You know you've already asked about skirts in here, and we have answered your questions.